Hey,
I've got a 2008, Remus 2&1/4 inch internal diameter slash cut outlets.
They ARE available from Buell-parts.com 70 euro each, left/right specific. I think I saw them elsewhere in europe as well same sort of price. you will have to add vat etc etc though! And... there's a minimum order value of £130 from buell-parts.
I went with generic ones by Drag Specialities from ARH custom £13 each and then cut them to size - you have to be very careful to cut the angles correctly and to size for both the baffle and the packing whilst still aligning the screw hole, then i sprayed the visible end of the baffle black. I did not bother trying to weld the loose end where the cut was - the metal was stiff enough I thought. Not easy but not that difficult either and pleased with the result / cost saving. They aren't a perfect slash cut angle like the originals, but I'ts not noticeable unless you are examining the exhaust outlets! depends how fussy you are about the small details I guess. Just concentrate on cutting the packing so it's a tight/good fit. Then i put it in for MOT, no mentions of noise although It's still a lot louder than my other bikes!
https://www.arhcustom.co.uk/product/dra ... -6147-8-54